Commercial building

Paddock Building (Franklin County, New York)
Paden's Drug Store (Lincoln County, New Mexico)
Page Brothers Building (Cook County, Illinois)
Page Coal and Coke Company Store (McDowell County, West Virginia)
Pahaska Tepee (Park County, Wyoming)
Paige Motor Car Co. Building (San Francisco County, California)
Paine Bank (Berrien County, Michigan)
Paine Furniture Building (Suffolk County, Massachusetts)
Palace Clothing Company Building (Jackson County, Missouri)
Palace Diner (York County, Maine)
One of two diners still in existence built by the Pollard Company of Lowell, MA
Palace Drug Store (Creek County, Oklahoma)
Palais Royale Building (St. Joseph County, Indiana)
Palm Beach Mercantile Company (Palm Beach County, Florida)
Palmetto Building (Richland County, South Carolina)
Palmolive Building (Cook County, Illinois)
Pan American Union (Washington, District of Columbia)
Panhorst Feed Store (Franklin County, Missouri)
Parham Apothecary Building (Jefferson County, Alabama)
Paris Lumber Company Building (Bear Lake County, Idaho)
Paris Photo Studio (Bear Lake County, Idaho)
Park Building (Worcester County, Massachusetts)
Park Building (Cuyahoga County, Ohio)
Park Row Building (New York County, New York)
Parker and Weeter Block (Carbon County, Utah)
Parker Building (Crow Wing County, Minnesota)
Parker Lumber Company Complex (Brazos County, Texas)
Parker's Store (Hillsborough County, New Hampshire)
Parkesburg National Bank (Chester County, Pennsylvania)
Parkhurst Building (Los Angeles County, California)
Parkinson & Co. Building (Okmulgee County, Oklahoma)
Parks In The Pines General Store (Coconino County, Arizona)
Parkview Apartments (Multnomah County, Oregon)
Parmley Land Office (Edmunds County, South Dakota)
Parrott Insurance Building (Clarke County, Georgia)
Parson and Scoville Building (Vanderburgh County, Indiana)
Pascal Building (Iberia Parish, Louisiana)
Paso Robles Almond Growers Association Warehouse (San Luis Obispo County, California)
Pat's Lounge (Cibola County, New Mexico)
Pataskala Banking Company (Licking County, Ohio)
Patroon Agent's House and Office (Rensselaer County, New York)
Patterson Law Office (Merrick County, Nebraska)
Patton and Loomis Block (Hampden County, Massachusetts)
Patton Block Building (Warren County, Illinois)
Patton Building (Hampden County, Massachusetts)
Paul Brown Building (St. Louis, Missouri)
Paul Building (Harris County, Texas)
Paula's Slow Down Diner (Hall County, Texas)
Pawtucket Elks Lodge Building (Providence County, Rhode Island)
Pawtucket Times Building (Providence County, Rhode Island)
Pay'n Takit #13 (Maricopa County, Arizona)
Pay'n Takit #25 (Maricopa County, Arizona)
Pay'n Takit #5 (Maricopa County, Arizona)
Payne Avenue State Bank (Ramsey County, Minnesota)
Peabody Museum of Salem (Essex County, Massachusetts)
Pearce General Store (Cochise County, Arizona)
Peck Memorial Library (Cortland County, New York)
Peck Tavern (New London County, Connecticut)
Peerless Coal Company Store (McDowell County, West Virginia)
Peerless Motor Company (Douglas County, Nebraska)
Peerless Rooms Building (Jackson County, Oregon)
Peerless Saloon (Calhoun County, Alabama)
Peggy Ann Building (Mahoning County, Ohio)
Pence Automobile Company Building (Hennepin County, Minnesota)
Pender's Store (Jackson County, Florida)
Pendergrass Building (Macon County, North Carolina)
Pendleton House (Pendleton County, Kentucky)
Pendrey Drug Store Building (Bear Lake County, Idaho)
Penn's Park General Store Complex (Bucks County, Pennsylvania)
Penn's Store (Boyle County, Kentucky)
Penrose Wolf Building (Somerset County, Pennsylvania)
People's Bank (Hancock County, West Virginia)
People's Bank of Friendsville (Blount County, Tennessee)
People's Co-op Building (Utah County, Utah)
People's General Store (San Bernardino County, California)
People's National Bank (Iberia Parish, Louisiana)
People's National Bank Building (Smith County, Texas)
People's Savings Bank (Linn County, Iowa)
A Louis Sullivan "Jewel Box" bank, severely damaged in the Flood of 2008, undergoing renovation
People's Supply Company (Baldwin County, Alabama)
Peoples Bank and Loan Building (Lafayette County, Arkansas)
Peoples Bank and Trust Company (Lee County, Mississippi)
Peoples Bank Company Building (Franklin County, Ohio)
Peoples Bank of Biloxi (Harrison County, Mississippi)
Peoples Building & Loan Building (Pulaski County, Arkansas)
Peoples Gas Building (Cook County, Illinois)
Peoples National Bank Building--Fries Building (Rock Island County, Illinois)
Percy--Lobdell Building (Lafourche Parish, Louisiana)
Pergola Pioneer Building and Totem Pole (King County, Washington)
Perkins Building (Pierce County, Washington)
Perkins Opera House (Jefferson County, Florida)
Perkins Store (Gila County, Arizona)
Perring Building (Dickinson County, Kansas)
Perry Wiles Grocery Company (Muskingum County, Ohio)
Perry-Payne Building (Cuyahoga County, Ohio)
Perryville Tavern (Hunterdon County, New Jersey)
Persy's Place (Providence County, Rhode Island)
Pet Plaza (St. Louis, Missouri)
Pete's Crossing Diner (Hennepin County, Minnesota)
Pete's Hamburgers (Crawford County, Wisconsin)
The "Best Hamburgers in the World" are made in Prairie du Chien!
Peter Joplin Commercial Block (Garland County, Arkansas)
Peter Kirk Building (King County, Washington)
Peter Pierce Store (Plymouth County, Massachusetts)
Peterboro Land Office (Madison County, New York)
Peters Cartridge Company (Warren County, Ohio)
Peters Paper Company Warehouse (Denver County, Colorado)
Peters Shoe Company Building (St. Louis, Missouri)
Peters' Barber Shop (Scott County, Iowa)
Petroleum Building (Tulsa County, Oklahoma)
Pettit Cleaners Building (Cowley County, Kansas)
Pevely Dairy Company Buildings (St. Louis, Missouri)
Peyton Building and Peyton Annex (Spokane County, Washington)
Peyton-Ellington Building (Charlottesville, Virginia)
Pfeifer Brothers Department Store (Pulaski County, Arkansas)
Phelps Dodge General Office Building (Cochise County, Arizona)
Philadelphia Contributionship (Philadelphia County, Pennsylvania)
Philadelphia Savings Fund Society Building (Philadelphia County, Pennsylvania)
Philadelphia Stock Exchange (Philadelphia County, Pennsylvania)
Philadelphia Watch Case Company Building (Burlington County, New Jersey)
Philadelphia Wholesales Drug Company Building (Philadelphia County, Pennsylvania)
Philcade Building (Tulsa County, Oklahoma)
Philip Carey Building (Mecklenburg County, North Carolina)
Philip Dougherty Tavern (Chester County, Pennsylvania)
Philips-Thompson Buildings (New Castle County, Delaware)
Philipsburgh Building (Westchester County, New York)
Phillip Hardware Store (Ellis County, Kansas)
Phillips 66 Station (Jackson County, Arkansas)
Phillips 66 Station #473 (Tulsa County, Oklahoma)
Phillips and Trosper Buildings (Lampasas County, Texas)
Phillips Block (Minnehaha County, South Dakota)
Phillipsburg General Store (Laclede County, Missouri)
Philtower (Tulsa County, Oklahoma)
Phipps--Wallace Store Building (St. Louis, Missouri)
Phipps-McElveen Building (Allegheny County, Pennsylvania)
Phlegar Building (Montgomery County, Virginia)
Phoenix Bank of Nansemond (Suffolk, Virginia)
Phoenix Building (Monroe County, New York)
Phoenix Building (Plymouth County, Massachusetts)
Phoenix Cleaners Building (Tulsa County, Oklahoma)
Phoenix Life Insurance Company Building (Hartford County, Connecticut)
Phoenix Opera House Block (Schuyler County, Illinois)
Phoenix Seed & Feed Company (Maricopa County, Arizona)
Physicians and Dentists Building (Philadelphia County, Pennsylvania)
Physicians Building (Fresno County, California)
Pier One (San Francisco County, California)
Pierce House (Olmsted County, Minnesota)
Piereus Store (Charlottesville, Virginia)
Pigeon Ranch (Santa Fe County, New Mexico)
Pike County Hospital (Pike County, Missouri)
Pike Inn, Old (Floyd County, Indiana)
Pilsbury Block (Androscoggin County, Maine)
Pilsener Brewing Company (Cuyahoga County, Ohio)
Pincus Building (Mobile County, Alabama)
Pine Tree Lumber Company Office Building (Morrison County, Minnesota)
Pinkston--Mays Store Building (Benton County, Arkansas)
Pioneer and Endicott Buildings (Ramsey County, Minnesota)
Pioneer Block (Eau Claire County, Wisconsin)
Pioneer Building (Oklahoma County, Oklahoma)
Pioneer Building (Westchester County, New York)
Pioneer Implement Company (Pottawattamie County, Iowa)
Pioneer Lounge (Cuyahoga County, Ohio)
Pioneer Market (Pinal County, Arizona)
Pioneer State Bank No. 36 (Lapeer County, Michigan)
Pioneer Tourist Court (Lincoln County, Oklahoma)
Pitcairn Building (Philadelphia County, Pennsylvania)
Pitcher Store (Callaway County, Missouri)
Pix Building (Galveston County, Texas)
Plainview Hardware Company Building (Ochiltree County, Texas)
Plant Auto Company Building (Cache County, Utah)
Planters Bank Building (Marion County, Texas)
Planters Bank Building (Mississippi County, Arkansas)
Planters Building (Robeson County, North Carolina)
Planters National Bank (Richmond, Virginia)
Plaza Building (Stanislaus County, California)
Plaza Court (Oklahoma County, Oklahoma)
Pleasant Grove Masonic Lodge (Olmsted County, Minnesota)
Plough Inn (Dane County, Wisconsin)
Plumbing Supply Company (Minnehaha County, South Dakota)
Pocahontas Fuel Company Store (McDowell County, West Virginia)
Pocahontas Fuel Company Store (McDowell County, West Virginia)
Pocahontas Times Print Shop (Pocahontas County, West Virginia)
Point Barrow Refuge Station (North Slope Borough, Alaska)
Pokrandt Blacksmith Shop (Waukesha County, Wisconsin)
Free standing, two story structure with fašade clad with Lannon stone.
Polk County Bank (Polk County, Oregon)
Polk-a-Dot Drive-In (Will County, Illinois)
Pollard Block (Windsor County, Vermont)
Polmer Store (Terrebonne Parish, Louisiana)
Polygonal Barn, Van Buren Township (Jackson County, Iowa)
Pond Creek Station (Wallace County, Kansas)
Pond Inn (St. Louis County, Missouri)